With an ideal balance of dirt-trapping efficiency and dirt-holding capacity, every FRAM oil filter uses filter media with a special blend of fibers and resin providing excellent engine protection.

The most commonly used filter media is cellulose, which is a natural material that presents a random and irregular field of fibers to the oil. By itself, it can only deliver about 80% dirt-trapping efficiency.

By adding microscopic synthetic fibers, small windows are created that trap the smaller dirt particles without affecting the flow of oil. Blending synthetic fibers with cellulose increases a filter’s dirt-trapping efficiency and its dirt-holding capacity for higher levels of engine protection and longer filter life.

Images are for illustrative purposes and filter media may not be exactly as shown.

FRAM Group testing of average filter efficiency and dirt holding capacity using FRAM XG3387A, XG8A, and XG4967 and their leading economy filter model equivalents under ISO 4548-12 for particles > 20 microns.

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